Die construction

Details Die construction Die construction

1976-07-26

1977-10-25

Husar, Francis S.

Plastic article or earthenware shaping or treating: apparatus

Means providing a shaping orifice

Adjustable shaping orifice or shape imparting insert member

425381, B29F 304

Patent

active

040553892

ABSTRACT:
This invention is directed to a bi-metallic die construction in which one of the die components includes a plastic flow channel formed essentially entirely in a face layer of metal which has been deposited by submerged arc welding techniques upon a base block of a metal having dissimilar characteristics therefrom. Generally the face layer metal is a hard, abrasion resistant and difficult to machine and accordingly relatively expensive metal such as stainless steel while the base component metal is formed of a more easily machineable less expensive metal such as hot rolled steel. The resultant die structure combines the benefits of lowered cost and heightened flexibility in the selection of various face materials for specific die use purposes.

REFERENCES:
patent: 1511555 (1924-10-01), Yngve
patent: 3377655 (1968-04-01), Kucharski et al.
patent: 3884611 (1975-05-01), Anderson et al.

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